The Big Bang Theory · SEASON 5

The Infestation Hypothesis

Episode 2 · 2011-09-22

★ 7.7
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Season 5Episode 2★ 7.7/10
  • Comedy

Episode overview

A fight between Sheldon and Penny leaves Amy caught in the middle, while Leonard tries to spice up his long-distance relationship with Priya.

20 minutes

Season 5 episodes